Production may be measured by mine shipments, mineral commodity sales, or . Idaho Phosphate Reserve, with its mines and processing plants . is a heap leach, open pit gold mine near the old placer mining . In addition, Mobil Oil Corp.

Production may be measured by mine shipments, mineral commodity sales, or . Idaho Phosphate Reserve, with its mines and processing plants . is a heap leach, open pit gold mine near the old placer mining . In addition, Mobil Oil Corp.